Button



Patented Apr. 8, 1924.

i 1,489,7 7 7 .PATENT v nDWARDwmER'zI-NGER, :or Pans-Un, e'zncflosLovAxav V'Applineatimpfiia'october'sa: 1923. :serier-No. e71,f729.

To all whom z't may concern:

2 Be it known that 1,'i-EnwAiiDl-MERZINGER, a citizen of Czechoslovakimfand resident'of Prague,' Czechoislovakia; 2112 ve "invent'eil 4certain newy and useful Improvements *in *'jButtons, application of whichhas been madeas follows: Czechoslovalkia, Septf22, 1922; Germany, SeptL'-26;'1922ffGreatlfBritain; 'Oc-t.

4,'1922; fwhich-'the following is 'a :specifi cation. j 4 v This 'invention relates to I' buttons yof.A the 'type generally -known 'as nonsepar'able Eor bachelofis'l-buttons 'in which the-head Vor button member proper-is connected 'tof a base member 'having a shank which passe's through the cloth andis :received withinj'the head member and held. therese 'that 'it cannot be readily'withdrawn. i I v A In the construction of he-head' orlbutton member the headmember comprises a dish Shaped part inl the bdttom 'of which there is an internal annular groove. In this part is placed a disk shaped plate having a central opening with spring tongues which hold the shank of the base member when the two parts are Imited.

In the manufacture of -buttons of this type, it has been found that the plate frequently catches one edge in the groove and is not forced down into position. The head member is thus ruined in manufacture, since the two parts of the button cannot be properly united. The process of manufacture which is carried out by machinery is also interfered with.

An object of my invention is to provide a construction in which the disk like plate member will always move easily to proper position and will therefore always be placed so as to properly grip the pin or shank of the base member.

Another object is to provide a disk member and means for holding it in proper position which are simple and efiicient.

Another object is to fashion the base of the head member and the base member so that the cloth will be firmly engaged and there will be no wabbling of the button.

Other objects will be apparent from the following detailed description and the appended claims.

In the drawings:

Figure 1 is a vertical section through the button in position on fabric, taken on the line 1-1 o-f Figure 2.

atV its .edgefih the; annular; grpovef-and 'does not 'move togprope'r position.fi

The 'button *compris'es :A a -top for: button member proper A-and-'a-base 'member B between vwhich' fis clainped'the -ifabric C when the button istin'us'e. Theb'ase member-B is 3k'z'omposed of *afgeneralflyfflat vmember --1 having a vdepre'ssed central ypor'tior'i *surrcunded by a'ridgeg2. iA headedpinl passf'es through wanl opening in thedepr'essed central *portionL and *is ffastened* to 'the Vmember --1 :in any-:desired manner.y MVThisy 'Wpinl :hafs a 'lmore or' less :'pirited* end 'to penetr'at'e' the -f-abric when the button is placed infus'e.V

The top or head member comprises a generally cylindrical part 4, a base 5 with an opening in its center for the passage of the pin 3 and an outwardly flaring flange 6 forming a continuation of the part 4. Within the part 4 and resting on the base 5 is positioned a Vflat disk 7 having a central opening and provided with slits extending outwardly from said openingto form spring tongues 8. The opening is smaller than the pin 3 and when the parts are assembled as shown in Figure 1, the tongues 8 are forced into the position shown and prevent withdrawal of the pin 3. A generally frustoconioal member 9 has a base resting on the outer edge of the disk 7 and its top is engaged by a top piece or cover 10 of appropriate shape having its edge spun over the edge of the part 6. This construction prevents displacement of any of the parts after the device is assembled.

In the construction as shown in Figure 4, the base 5 has an annular groove 11 which is intended to cooperate with the groove 2 of the base member and grip the fabric therebetween. When assembling the parts it is found that the disk frequently catches one edge in the groove ll as shown in Figure 4 as it is fed in by machinery, and is not properly positioned, thus ruining the button as well as interfering with the operation of the -machine. To obviate this difiiculty I have vmade this roove discontinuous forming a number of s ort depressions 11' as shown in Figure 3, separated by parts 12 Which are continuous With and in the same plane as the base 5. i

It is obvious that it Will'be impossible for the edge of the disk 7 to enter one of the depressions ll' and therefore the disk Will always be guided Lto proper position When fed in by the machinery.

Furthermore, since the depressions ll Which are opposite to the groove 2 in the base member, are not continuous, the two members will grip the fabric more closely and the button Will not so easily be able to rotate With reference to the fabric, Which movement Would result in Wear and a general loosening of the' button.

Various detail changes may be made Without departing from the spirit of the invention Which is to be regarded as limited only by the scope of the appended claims.

I claim as my nvention:

1. A button comprising head and base members, the base member comprising a disc anda pin adapted to be forced into the head, the head member comprising aI body portion the bottom part of Which is formed With depressions separated by plane or undepressed portions, a disc having spring fingers adapted to engage the pin and means fo-r holding the disc in place on the bottom of the head member.

2. A button comprising head and base members, the base member having a pin adapted to be forced into the head member, a disc slitted outwardly from its center to form spring iingers to engage said pin and hold -it against Withdrawal and the bottom of the head member being provided With depressi'ons separated by plane portions which serve to guide the disc into a proper position 1yyhen being inserted Within the head memer.y

3. A button comprsing head and base members,lthe base member having a plate provided With an annular groove on its innerV surface'an'd also having a pin adapted tobe forced into the head member, a disc slitted, outwardly from its centre to form springl fingers to engage the pin and hold it against Withdrawal and the bottom of the head member being provided With depressions Which register' With thegroove in the plate and hold the fab'ric therebetween, said depressions being separated by plane portions Which serve to Vguide the disc into proper position Within the head member.

In testimony Whereo-f, I have hereunto subscribed my name. i

EDWARD MERZINGER. Witnesses: i

EVA L. WA'r'rs, ELUVA EVA FnoN'rzoA. 

